package com.sinping.qh.utils.excel;

import com.sinping.qh.domain.lab.LaboratoryDomain;
import com.sinping.qh.dto.admin.lab.AddCompanyPaymentErrorDetailDTO;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;

import java.io.ByteArrayInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.*;

/**
 * excel读写工具类
 */
public class POIUtil {
    private static Logger logger = Logger.getLogger(POIUtil.class);
    private final static String xls = "xls";
    private final static String xlsx = "xlsx";

    /**
     * 读入excel文件，解析后返回
     *
     * @param file
     * @throws IOException
     */
    public static List<String[]> readExcel(MultipartFile file) throws IOException {
        //检查文件  
        checkFile(file);
        //获得Workbook工作薄对象  
        Workbook workbook = getWorkBook(file);
        //创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回  
        List<String[]> list = new ArrayList<String[]>();
        if (workbook != null) {
            for (int sheetNum = 0; sheetNum < workbook.getNumberOfSheets(); sheetNum++) {
                //获得当前sheet工作表  
                Sheet sheet = workbook.getSheetAt(sheetNum);
                if (sheet == null) {
                    continue;
                }
                //获得当前sheet的开始行  
                int firstRowNum = sheet.getFirstRowNum();
                //获得当前sheet的结束行  
                int lastRowNum = sheet.getLastRowNum();
                //循环除了第一行的所有行  
                for (int rowNum = firstRowNum + 1; rowNum <= lastRowNum; rowNum++) {
                    //获得当前行  
                    Row row = sheet.getRow(rowNum);
                    if (row == null) {
                        continue;
                    }
                    //获得当前行的开始列  
                    int firstCellNum = row.getFirstCellNum();
                    //获得当前行的列数  
                    int lastCellNum = row.getPhysicalNumberOfCells();
                    String[] cells = new String[row.getPhysicalNumberOfCells()];
                    //循环当前行  
                    for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
                        Cell cell = row.getCell(cellNum);
                        cells[cellNum] = getCellValue(cell);
                    }
                    list.add(cells);
                }
            }
//            workbook.close();
        }
        return list;
    }

    /**
     * 读取Excel返回集合
     * @param fileContent
     * @param filePath
     * @return
     * @throws IOException
     */
    public static Map<String, Object> readExcel(byte[] fileContent, String filePath) throws IOException {
        Map<String, Object> result = new HashMap<>();
        List<AddCompanyPaymentErrorDetailDTO> addCompanyPaymentErrorDetailDTOS = new LinkedList<>();
        //List<CompanyPaymentDetail> companyPaymentDetails = new ArrayList<>();
        List<LaboratoryDomain> labDomainList = new ArrayList<>();

        //获得Workbook工作薄对象
        Workbook workbook = getWorkBook(fileContent, filePath);
        //创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回
        List<String[]> list = new ArrayList<String[]>();
        if (workbook != null) {
//            for(int sheetNum = 0;sheetNum < workbook.getNumberOfSheets();sheetNum++){
            //获得当前sheet工作表
            Sheet sheet = workbook.getSheetAt(0);
            //获得当前sheet的开始行
            int firstRowNum = sheet.getFirstRowNum();
            Row titleRow = sheet.getRow(firstRowNum);
            if (!isRowEmpty(titleRow)) {
                if(!getCellValue(titleRow.getCell(1)).equals("所属单位")){
                    throw new IOException();
                }
                if(!getCellValue(titleRow.getCell(2)).equals("所属楼宇")){
                    throw new IOException();
                }
                if(!getCellValue(titleRow.getCell(4)).equals("房间号")){
                    throw new IOException();
                }
                if(!getCellValue(titleRow.getCell(5)).equals("房间面积(m2)")){
                    throw new IOException();
                }
//                if(!getCellValue(titleRow.getCell(6)).equals("安全负责人")){
//                    throw new IOException();
//                }
//                if(!getCellValue(titleRow.getCell(7)).equals("联系电话")){
//                    throw new IOException();
//                }
                if(!getCellValue(titleRow.getCell(8)).equals("安全级别")){
                    throw new IOException();
                }
            }else{
                throw new IOException();
            }

            //获得当前sheet的结束行
            int lastRowNum = sheet.getLastRowNum();
            //循环除了第一行的所有行
            for (int rowNum = firstRowNum + 1; rowNum <= lastRowNum; rowNum++) {
                //获得当前行
                Row row = sheet.getRow(rowNum);
                if (isRowEmpty(row)) {
                    continue;
                }
                //获得当前行的开始列
                int firstCellNum = row.getFirstCellNum();
                //获得当前行的列数
                int lastCellNum = row.getLastCellNum();
                LaboratoryDomain labDomain = new LaboratoryDomain();
                AddCompanyPaymentErrorDetailDTO addCompanyPaymentErrorDetailDTO = new AddCompanyPaymentErrorDetailDTO();
                //循环当前行
                for (int cellNum = 0; cellNum < 9; cellNum++) {
                    Cell cell = row.getCell(cellNum);
                    if (getCellValue(titleRow.getCell(cellNum)).equals("实验室名称")) {
                        String cellValue = getCellValue(cell);
                        labDomain.setLabName(cellValue.trim());
                    }
                    if (getCellValue(titleRow.getCell(cellNum)).equals("所属所室")) {
                        String cellValue = getCellValue(cell);
                        labDomain.setOffices(cellValue.trim());
                    }
                    if (getCellValue(titleRow.getCell(cellNum)).equals("安全员")) {
                        String cellValue = getCellValue(cell);
                        labDomain.setRiskManager(cellValue.trim());
                    }
                    if (getCellValue(titleRow.getCell(cellNum)).equals("安全员电话")) {
                        String cellValue = getCellValue(cell);
                        labDomain.setTelephone(cellValue.trim());
                    }
                    if (getCellValue(titleRow.getCell(cellNum)).equals("所属单位")) {
                        String cellValue = getCellValue(cell);
                        if (StringUtils.isBlank(cellValue)) {
                            addCompanyPaymentErrorDetailDTO.setErrorCode("所属单位为空");
                        } else {
                            addCompanyPaymentErrorDetailDTO.setIdentityNo(cellValue.trim());
                            labDomain.setUnitName(cellValue.trim());
                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("所属楼宇")) {
                        String cellValue = getCellValue(cell);
                        if (StringUtils.isBlank(cellValue)) {
                            addCompanyPaymentErrorDetailDTO.setErrorCode("所属楼宇为空");
                        } else {
                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setBuildingName(cellValue.trim());
                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("房间号")) {
                        String cellValue = getCellValue(cell);
                        if (StringUtils.isBlank(cellValue)) {
                            addCompanyPaymentErrorDetailDTO.setErrorCode("房间号为空");
                        } else {
                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setRoomNo(cellValue.trim());
                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("房间面积(m2)")) {
                        String cellValue = getCellValue(cell);
                        if (StringUtils.isBlank(cellValue)) {
                            addCompanyPaymentErrorDetailDTO.setErrorCode("房间面积为空");
                        } else {
                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setRoomArea(cellValue.trim());
                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("安全负责人")) {
                        String cellValue = getCellValue(cell);
//                        if (StringUtils.isBlank(cellValue)) {
//                            addCompanyPaymentErrorDetailDTO.setErrorCode("安全负责人为空");
//                        } else {
//                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setRiskManager(cellValue.trim());
//                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("联系电话")) {
                        String cellValue = getCellValue(cell);
//                        if (StringUtils.isBlank(cellValue)) {
//                            addCompanyPaymentErrorDetailDTO.setErrorCode("联系电话为空");
//                        } else {
//                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setTelephone(cellValue.trim());
//                        }
                    } else if (getCellValue(titleRow.getCell(cellNum)).equals("安全级别")) {
                        String cellValue = getCellValue(cell);
                        if (StringUtils.isBlank(cellValue)) {
                            addCompanyPaymentErrorDetailDTO.setErrorCode("安全级别为空");
                        } else {
                            addCompanyPaymentErrorDetailDTO.setFullName(cellValue.trim());
                            labDomain.setRiskLevel(cellValue.trim());
                        }
                    }
                }
                if (addCompanyPaymentErrorDetailDTO.getErrorCode() != null) {
                    addCompanyPaymentErrorDetailDTOS.add(addCompanyPaymentErrorDetailDTO);
                } else {
                    labDomainList.add(labDomain);
                }
            }
//            workbook.close();
        }
        result.put("addCompanyPaymentErrorDetailDTOS", addCompanyPaymentErrorDetailDTOS);
        result.put("labDomainList", labDomainList);
        return result;
    }

    public static void checkFile(MultipartFile file) throws IOException {
        //判断文件是否存在  
        if (null == file) {
            logger.error("文件不存在！");
            throw new FileNotFoundException("文件不存在！");
        }
        //获得文件名  
        String fileName = file.getOriginalFilename();
        //判断文件是否是excel文件  
        if (!fileName.endsWith(xls) && !fileName.endsWith(xlsx)) {
            logger.error(fileName + "不是excel文件");
            throw new IOException(fileName + "不是excel文件");
        }
    }

    public static Workbook getWorkBook(MultipartFile file) {
        //获得文件名  
        String fileName = file.getOriginalFilename();
        //创建Workbook工作薄对象，表示整个excel  
        Workbook workbook = null;
        try {
            //获取excel文件的io流  
            InputStream is = file.getInputStream();
            //根据文件后缀名不同(xls和xlsx)获得不同的Workbook实现类对象  
            if (fileName.endsWith(xls)) {
                //2003  
                workbook = new HSSFWorkbook(is);
            } else if (fileName.endsWith(xlsx)) {
                //2007  
                workbook = new XSSFWorkbook(is);
            }
        } catch (IOException e) {
            logger.info(e.getMessage());
        }
        return workbook;
    }

    public static Workbook getWorkBook(byte[] fileContent, String filePath) {
        InputStream input = new ByteArrayInputStream(fileContent);
        //获得文件名
        //创建Workbook工作薄对象，表示整个excel
        Workbook workbook = null;
        try {
            //获取excel文件的io流
            InputStream is = input;
            //根据文件后缀名不同(xls和xlsx)获得不同的Workbook实现类对象
            if (filePath.endsWith(xls)) {
                //2003
                workbook = new HSSFWorkbook(is);
            } else if (filePath.endsWith(xlsx)) {
                //2007
                workbook = new XSSFWorkbook(is);
            }
        } catch (IOException e) {
            logger.info(e.getMessage());
        }
        return workbook;
    }

    public static String getCellValue(Cell cell) {
        String cellValue = "";
        if (cell == null) {
            return cellValue;
        }
        //把数字当成String来读，避免出现1读成1.0的情况  
        if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
            cell.setCellType(Cell.CELL_TYPE_STRING);
        }
        //判断数据的类型  
        switch (cell.getCellType()) {
            case Cell.CELL_TYPE_NUMERIC: //数字  
                cellValue = String.valueOf(cell.getNumericCellValue());
                break;
            case Cell.CELL_TYPE_STRING: //字符串  
                cellValue = String.valueOf(cell.getStringCellValue());
                break;
            case Cell.CELL_TYPE_BOOLEAN: //Boolean  
                cellValue = String.valueOf(cell.getBooleanCellValue());
                break;
            case Cell.CELL_TYPE_FORMULA: //公式  
                cellValue = String.valueOf(cell.getCellFormula());
                break;
            case Cell.CELL_TYPE_BLANK: //空值   
                cellValue = "";
                break;
            case Cell.CELL_TYPE_ERROR: //故障  
                cellValue = "非法字符";
                break;
            default:
                cellValue = "未知类型";
                break;
        }
        return cellValue;
    }

    //判断行为空
    public static boolean isRowEmpty(Row row) {
        if(row==null){
            return true;
        }
        for (int c = row.getFirstCellNum(); c < row.getLastCellNum(); c++) {
            Cell cell = row.getCell(c);
            if (cell != null && cell.getCellType() != Cell.CELL_TYPE_BLANK) {
                return false;
            }

        }
        return true;
    }
}